Winna Posted February 12, 2023 Report Share Posted February 12, 2023 I've installed a new heater on a Bilbao Spa. It worked for a week and blew fuse no. 3 (0.125A) and spar stopped working. Can anyone advise what can cause this fuse to blow and shut down. Quote Link to comment Share on other sites More sharing options...
cranbiz Posted February 14, 2023 Report Share Posted February 14, 2023 Could be anything. When you replaced the heater, did you replace the entire assembly or just the internal element? Do you have any dark spots on the board near any relay? Post up pictures of the board, wiring diagram on the inside cover and of the equipment area. Quote Link to comment Share on other sites More sharing options...
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